CA1279049C - Plotter pen - Google Patents
Plotter penInfo
- Publication number
- CA1279049C CA1279049C CA 552581 CA552581A CA1279049C CA 1279049 C CA1279049 C CA 1279049C CA 552581 CA552581 CA 552581 CA 552581 A CA552581 A CA 552581A CA 1279049 C CA1279049 C CA 1279049C
- Authority
- CA
- Canada
- Prior art keywords
- pen
- holder
- carriage
- stocker
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Abstract
Abstract A pen for use in an x-y plotter, the casing of the pen having means for interacting with the pen holders of the plotter to establish and maintain a desired annular orientation of the pen.
Description
PLO'rTER PEN
This inYention relates to a pen for use in a plotter ana more particularly to a plotter pen wh~ch i~ adapted to maintain a desired annular orientation.
BackgrouDd In a standard s-y plotter, one or more felt tip or ball point pens, normally of different colors, are mounted in suitable holders in a pen stocker. The plotter is programmed to move a pen carriage to position a holder on the carriage to pick up a selected pen from the stocker and to move the pen carriage and either a slider on which the carriage i8 mounted or a paper or other medium mounted under the carriage through a predetermined path or pathc to cause the pen to draw desirea images on the medium. In such devices, the pen will tend to rotate slightly in the holder in use and there may be substantial rotation of the pen as a result of transfers between the stocker holder and the carriage holder. While such rotation of the pen relative to the holder is not a problem when ball point or felt tip pens are utilized, and i8 in fact desirable to equalize wear, it is a problem when the plotter i~ utilized to do calligraphy, utilizing a calligraphy-style fountain pen.
When ~ fountain pen is used in the plotter, point shape and ink flow vary with annular orientation of the pen~ therefore, the shape, thickness and intensity of tbe line being drawn by tbe pen are dependent on the pen orientation. m erefore, to obtain desired stroke thickness and uniform (or at least controlled) :;
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' ' ' ' ~
~. '. - ' ~ ' ~12~79049 stroke appearance when using a plotter to do calllgrapby with a fountain pen, it i8 necessary that the annular orientat$on of the pen in the carriage holder be the same e~ch time a pen ls picked up by the carriage holder from a stocker holder and ~hat the annular orientation of the pen be maint~ined in the carriage holder while the pen is in use In order to accomplish this objective, a desired annular orientation mu~t be maintained for the pen in both the stocker holder and the carriage holder Summarv of the Invention This invention, therefore, provides a fountain pen for use in a plotter, the plotter being of a type having a pen stocker with at le~st one pen stocker holder, a pen c~rriage, a pen holder mounted on the carri~ge, and means for transferring a pen between the carri~ge holder ~nd a select stocker holder The pen has a casing and a pen point mounted to project from the bottom of the casing The caslng includes a first means adapted to interact with ~ stocker hold~r to establish and m~intain a desired annul~r orientation of the p n in the stocker holder and second means for inter~cting with the c~rri~ge holder to est~blish ~nd msintain desired annua~r orientation of the pen in the carriage holder For ~ pr-f-rr d -bodiment of the invention, the first and second mean~ are proj-ctlon~ ~electlvely po~itiond on the casing ~nd ad~pted to inter~ct with the respective holder~ to establish ~nd malntain thè de~ir d orientation for the pen . ~
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. . : - . . . : . : -1~'79049 Br ~ ef De~cr ~tlon of the Drawing~
Fig. 1 is a pro~pective view of an x-y plotter suitable for use in practicing the teachings of this invention.
Fig. 2 is a side plan view of a calligraphy style fountain pen incorporating the teachings of this invention.
Fig. 3 is a top plan view of a stocker holder of a type suitable for use in practicing the teachings of this invention.
Fig. 4 is a top view, partially cut away, of the stocker bolder of Fig. 3 with the pen of Fig. 2 mounted therein.
Fig. 5 is a prospective view of a carriage holder suitable for use in practicing the teachings of this invention.
Fig. 6. is a top view, partially cut away, of the carr$age holder of Fig. 5 having the pen of Fig. 2 mounted therein.
Detailed De~cri~tion Referring to Fig. 1, a plotter suitable for use in practicing the teacbings of this invention is sbown. ffl e plotter has a recording table 12 on which a sheet of paper or other medium on which i~age~ are to be plotted i8 positioned. ~older 13 and guides 1~ are provid d to po~ition and hold the medium. A
plurality of pens 16 are ~ounted in pen holder~ 18 (~ee Fig. 3) wbich for~ part of pen ~tocker 20. The pens 16 ~ountd in stocker 20 ~ay be of diff-rent colors, tip thicknesses, or have other variations which re~ult in the pen causing diferent i~pressions to appear on the paper or other recording ~ediu~ when the pen i5 eleot~d or u-e.
This inYention relates to a pen for use in a plotter ana more particularly to a plotter pen wh~ch i~ adapted to maintain a desired annular orientation.
BackgrouDd In a standard s-y plotter, one or more felt tip or ball point pens, normally of different colors, are mounted in suitable holders in a pen stocker. The plotter is programmed to move a pen carriage to position a holder on the carriage to pick up a selected pen from the stocker and to move the pen carriage and either a slider on which the carriage i8 mounted or a paper or other medium mounted under the carriage through a predetermined path or pathc to cause the pen to draw desirea images on the medium. In such devices, the pen will tend to rotate slightly in the holder in use and there may be substantial rotation of the pen as a result of transfers between the stocker holder and the carriage holder. While such rotation of the pen relative to the holder is not a problem when ball point or felt tip pens are utilized, and i8 in fact desirable to equalize wear, it is a problem when the plotter i~ utilized to do calligraphy, utilizing a calligraphy-style fountain pen.
When ~ fountain pen is used in the plotter, point shape and ink flow vary with annular orientation of the pen~ therefore, the shape, thickness and intensity of tbe line being drawn by tbe pen are dependent on the pen orientation. m erefore, to obtain desired stroke thickness and uniform (or at least controlled) :;
.; ' ~.
.
. .
: ' . . ' . .
' ' ' ' ~
~. '. - ' ~ ' ~12~79049 stroke appearance when using a plotter to do calllgrapby with a fountain pen, it i8 necessary that the annular orientat$on of the pen in the carriage holder be the same e~ch time a pen ls picked up by the carriage holder from a stocker holder and ~hat the annular orientation of the pen be maint~ined in the carriage holder while the pen is in use In order to accomplish this objective, a desired annular orientation mu~t be maintained for the pen in both the stocker holder and the carriage holder Summarv of the Invention This invention, therefore, provides a fountain pen for use in a plotter, the plotter being of a type having a pen stocker with at le~st one pen stocker holder, a pen c~rriage, a pen holder mounted on the carri~ge, and means for transferring a pen between the carri~ge holder ~nd a select stocker holder The pen has a casing and a pen point mounted to project from the bottom of the casing The caslng includes a first means adapted to interact with ~ stocker hold~r to establish and m~intain a desired annul~r orientation of the p n in the stocker holder and second means for inter~cting with the c~rri~ge holder to est~blish ~nd msintain desired annua~r orientation of the pen in the carriage holder For ~ pr-f-rr d -bodiment of the invention, the first and second mean~ are proj-ctlon~ ~electlvely po~itiond on the casing ~nd ad~pted to inter~ct with the respective holder~ to establish ~nd malntain thè de~ir d orientation for the pen . ~
-- : - -. ~: -. . .
. . : - . . . : . : -1~'79049 Br ~ ef De~cr ~tlon of the Drawing~
Fig. 1 is a pro~pective view of an x-y plotter suitable for use in practicing the teachings of this invention.
Fig. 2 is a side plan view of a calligraphy style fountain pen incorporating the teachings of this invention.
Fig. 3 is a top plan view of a stocker holder of a type suitable for use in practicing the teachings of this invention.
Fig. 4 is a top view, partially cut away, of the stocker bolder of Fig. 3 with the pen of Fig. 2 mounted therein.
Fig. 5 is a prospective view of a carriage holder suitable for use in practicing the teachings of this invention.
Fig. 6. is a top view, partially cut away, of the carr$age holder of Fig. 5 having the pen of Fig. 2 mounted therein.
Detailed De~cri~tion Referring to Fig. 1, a plotter suitable for use in practicing the teacbings of this invention is sbown. ffl e plotter has a recording table 12 on which a sheet of paper or other medium on which i~age~ are to be plotted i8 positioned. ~older 13 and guides 1~ are provid d to po~ition and hold the medium. A
plurality of pens 16 are ~ounted in pen holder~ 18 (~ee Fig. 3) wbich for~ part of pen ~tocker 20. The pens 16 ~ountd in stocker 20 ~ay be of diff-rent colors, tip thicknesses, or have other variations which re~ult in the pen causing diferent i~pressions to appear on the paper or other recording ~ediu~ when the pen i5 eleot~d or u-e.
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lZ~gO49 Horizontal movement of a pen over table 12 is caused by slider 22 moving back and forth over the table. A carriage 24 positioned in slider 22 has a pen holder 26 mounted thereon.
Movement of slider 22 and carriage 24 as well as the selection of a pen 16 from stocker 20 may be programmed and controllea from operating panel 28.
In operation, carriage holder 26 is brought into proximity with a selected one of the stocker holders 18 under control of panel 28 and the selected pen 16 is picked up by carriage holder 26. The plotter ~hen operates either under control of panel 28 or under control of a program in a standard manner to move slider 22 and carriage 24 through selected paths to cause a desired image or images to be plotted on the paper or other medium position on tabIe 12. When plotting with a selected pen has been completed, carriage holder 26 is again positioned adjacent to the stocker holder 18 for the selected pen and the pen is transferred back to the stocker holder. The sequence of operations may then be repeated with another pen on the same medium if desired.
The plotter and the sequence of operations described to this point are conventional. An esample of a plotter which operates in the manner indicated is the model NPS-P6 manufactured by Sekonic Co., Ltd, Tokyo, Japan. While a device of this type is suitable when ucing balI point, felt tip, or other pens with substantially ~ymmetrical tips, such devices are not adapted to control the annular orientation of the pen in the carriage holder when a pen haYlng an asymmetric nib or point, such as a fountain pen, is _~_ , ''~ ' ~ " ' ' .'', ' - - - -: .. ' , :
,. - -, ' ' - - ~ . -: . ~
--utilized. It has been found that signific~nt rot~tion of the p~n in the holder~ occurs particularly as the pens are transferred between the stocker holders and the carriage holder. This can cause unpredictable variations in line width and intensity, and therefore, unacceptable writing quality, when the plotter is used to do calligraphic writing using a calligraphic style fountain pen. This invention relates to 8 mechanism for overcoming this problem.
~ eferring to Fig. 2, a pen 16 is shown which incorporates the teachings of this invention. ffl e pen has a hollow casing 30 with three groove~ 32, 3~, 36 formed therein. A threaded tube 38 project~ from the top of ca~ing 30 and i8 adapted to have an in~
cartridge mounted thereto. A nib ~0 having a point ~2 and an ink reservoir ~4 projects from the bottom of casing 30. A first projection ~6 i8 foraed or mounted in groove 32 in a ~econd projection ~8 is formed or mounted in groove 3~. The function of projections ~6 ~nd 48 will be described shortly.
Referring to Fig-. 3 and ~, lt is seen that stocker holder 18 h~s a gener~lly U-~h~ped configur~tion with a pair of stopper element 50 projecting from roughly the center of the connecting leg. ~old-r 18 could be formed of plastic, met~l, or other m~terl~l b~ving ~oae re~iliency 80 that groove 3~ of pen casing 30 may be wedged between the ~ide arms of holder 18 and into abutment with stop 50 ~nd will be held in the holder by friction and by a light sprlng pres-ur- e~erted by the lde ar~s of holder 18 ~gain~t the ~ of groove 3~. In accordance with the teachings , _ _ . . .
, ~ . ~ - ,, - , :
. - , :-. . - :
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of th~s ~nvention project~on 48 in groove 34 f~t~ between one of the stoppers 50 and one of the side arms of holder la to maintain the annular orientation of the pen ~n holder 18 and to establish the proper orientation when the pen is inserted in the holder While for the preferred embodiment shown in Fig 4, the projection 48 fits between the right hand stopper 50 and the right leg of holder 18, the projection could be oriented in groove 32 80 as to fit between the left stopper and left arm if des~red Similarly, for the preferred embodiment, carriage holder 26 consi6ts of a pair of U-shaped elements 52u and 521, each having a stopper 54 projecting from the center of its connecting arm Elements 52 are connected by a pair of legs 56 Grooves 32 and 36 fit re~pectively in U-shaped elements 52u and 521 and are held in the holders by friction and a slight spring pressure The annular orientation of the pen in holder 26 is established and maintained by projection ~6 fitting between stopper 5~u and the right side arm of U-shaped element 52u Whlle for the preferred embodiment a projection ~6 is shown only in groove 32 to interact with U-shaped l-ment 52u, a corre-ponding proj ction could be formed or fitted in groove 36 to inter~ct witb lower U-shaped member 521, either in addition to th- projection ~6 ~hown or lnstead thereof It i~ o noted tbat the pro~ections ~6 and ~8 do not fit nugly in the ~pac-8 provided therefore 80 tbat ~ome sllgbt rotary movement of the pen in the holder i8 po~-lble This sllght rotary mov-ment doe- not interfere witb the perform~nce of tbe device ince varlatlon- in annular orientation of the pen over a few . ~
:~ ' ~- . . . . . , :
.
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degrees does not make any difference and greatly reduces the tolerances on the system required when transferring pens between the carriage and stocker holders. While the particular orientation of pen 16 in carriage holder 26 is not absolutely critical so long as the orientation is known and constant, the preferred orientation of the pen i6 æuch that reservoir 44 is facing toward the bottom of table 12.
While for the preferred embodiment of the invention described above, projections have been provided on the casing 30 of pen 16 to control the orientation of the pen in the holders, it is apparent that other equivalent means could be provided to assure proper orientation of the pen in the holders. For example, a depression could be formed in the appropriate grooves in which the stoppers 50 and 54 would fit to maintain pen orientation or the grooves 32 and 3~ could extend only partly around each side of casing 30 rather than being fully annular so that the pen would fit into holder~ 18 and 26 in only a single annular orientation~
Similarly, while tbe plotter shown in Fig. 1 is an x-y plotter, the invention could be practiced with any plotter which has a transfer of a pen between a stocker holder and a carriage holder.
For exampl-, tbe invent$on could be used with a pen plotter of the type where aoveaent in one direction is accoaplished by moving a carriage, aoveaent in the other direction i~ effected by moving the paper or other aediu~ with roller- or similar devices and the stocker i- a carou~el which aay be rotated to bring a desird pen , into pro~iaity with the carriage holder. Fin~ily, whlle the ~: ~
, ~ -7-, , ... . . . .
' : ~ ' ~ . ' ' - . ' - - , - .
',: ' ', . " - ' - ' , , ,; - - ' ' ' .
~nventlon ~-~ been de~cr~bed with refer-nce to a calligr~phy-~tyl-fountain pen, lt could be utlllzed wlth other pen- th- wcltlng quality of wh~ch i~ annular orientation dependent. m-refore, while ehe invention h~s been descr~bed ~bove with reference to a preferred embodiment thereof, it will be apparent that the foregoing and otber ch~nges in form and detail ~y be m~de therein by one skilled in the art without departing ftom the ~pirit ~nd scope of the invention '. ~
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lZ~gO49 Horizontal movement of a pen over table 12 is caused by slider 22 moving back and forth over the table. A carriage 24 positioned in slider 22 has a pen holder 26 mounted thereon.
Movement of slider 22 and carriage 24 as well as the selection of a pen 16 from stocker 20 may be programmed and controllea from operating panel 28.
In operation, carriage holder 26 is brought into proximity with a selected one of the stocker holders 18 under control of panel 28 and the selected pen 16 is picked up by carriage holder 26. The plotter ~hen operates either under control of panel 28 or under control of a program in a standard manner to move slider 22 and carriage 24 through selected paths to cause a desired image or images to be plotted on the paper or other medium position on tabIe 12. When plotting with a selected pen has been completed, carriage holder 26 is again positioned adjacent to the stocker holder 18 for the selected pen and the pen is transferred back to the stocker holder. The sequence of operations may then be repeated with another pen on the same medium if desired.
The plotter and the sequence of operations described to this point are conventional. An esample of a plotter which operates in the manner indicated is the model NPS-P6 manufactured by Sekonic Co., Ltd, Tokyo, Japan. While a device of this type is suitable when ucing balI point, felt tip, or other pens with substantially ~ymmetrical tips, such devices are not adapted to control the annular orientation of the pen in the carriage holder when a pen haYlng an asymmetric nib or point, such as a fountain pen, is _~_ , ''~ ' ~ " ' ' .'', ' - - - -: .. ' , :
,. - -, ' ' - - ~ . -: . ~
--utilized. It has been found that signific~nt rot~tion of the p~n in the holder~ occurs particularly as the pens are transferred between the stocker holders and the carriage holder. This can cause unpredictable variations in line width and intensity, and therefore, unacceptable writing quality, when the plotter is used to do calligraphic writing using a calligraphic style fountain pen. This invention relates to 8 mechanism for overcoming this problem.
~ eferring to Fig. 2, a pen 16 is shown which incorporates the teachings of this invention. ffl e pen has a hollow casing 30 with three groove~ 32, 3~, 36 formed therein. A threaded tube 38 project~ from the top of ca~ing 30 and i8 adapted to have an in~
cartridge mounted thereto. A nib ~0 having a point ~2 and an ink reservoir ~4 projects from the bottom of casing 30. A first projection ~6 i8 foraed or mounted in groove 32 in a ~econd projection ~8 is formed or mounted in groove 3~. The function of projections ~6 ~nd 48 will be described shortly.
Referring to Fig-. 3 and ~, lt is seen that stocker holder 18 h~s a gener~lly U-~h~ped configur~tion with a pair of stopper element 50 projecting from roughly the center of the connecting leg. ~old-r 18 could be formed of plastic, met~l, or other m~terl~l b~ving ~oae re~iliency 80 that groove 3~ of pen casing 30 may be wedged between the ~ide arms of holder 18 and into abutment with stop 50 ~nd will be held in the holder by friction and by a light sprlng pres-ur- e~erted by the lde ar~s of holder 18 ~gain~t the ~ of groove 3~. In accordance with the teachings , _ _ . . .
, ~ . ~ - ,, - , :
. - , :-. . - :
: ~ ' :
,- - ~ , ', , .
of th~s ~nvention project~on 48 in groove 34 f~t~ between one of the stoppers 50 and one of the side arms of holder la to maintain the annular orientation of the pen ~n holder 18 and to establish the proper orientation when the pen is inserted in the holder While for the preferred embodiment shown in Fig 4, the projection 48 fits between the right hand stopper 50 and the right leg of holder 18, the projection could be oriented in groove 32 80 as to fit between the left stopper and left arm if des~red Similarly, for the preferred embodiment, carriage holder 26 consi6ts of a pair of U-shaped elements 52u and 521, each having a stopper 54 projecting from the center of its connecting arm Elements 52 are connected by a pair of legs 56 Grooves 32 and 36 fit re~pectively in U-shaped elements 52u and 521 and are held in the holders by friction and a slight spring pressure The annular orientation of the pen in holder 26 is established and maintained by projection ~6 fitting between stopper 5~u and the right side arm of U-shaped element 52u Whlle for the preferred embodiment a projection ~6 is shown only in groove 32 to interact with U-shaped l-ment 52u, a corre-ponding proj ction could be formed or fitted in groove 36 to inter~ct witb lower U-shaped member 521, either in addition to th- projection ~6 ~hown or lnstead thereof It i~ o noted tbat the pro~ections ~6 and ~8 do not fit nugly in the ~pac-8 provided therefore 80 tbat ~ome sllgbt rotary movement of the pen in the holder i8 po~-lble This sllght rotary mov-ment doe- not interfere witb the perform~nce of tbe device ince varlatlon- in annular orientation of the pen over a few . ~
:~ ' ~- . . . . . , :
.
-.
, - . .
.
~. .
~, . . . , - .
.
degrees does not make any difference and greatly reduces the tolerances on the system required when transferring pens between the carriage and stocker holders. While the particular orientation of pen 16 in carriage holder 26 is not absolutely critical so long as the orientation is known and constant, the preferred orientation of the pen i6 æuch that reservoir 44 is facing toward the bottom of table 12.
While for the preferred embodiment of the invention described above, projections have been provided on the casing 30 of pen 16 to control the orientation of the pen in the holders, it is apparent that other equivalent means could be provided to assure proper orientation of the pen in the holders. For example, a depression could be formed in the appropriate grooves in which the stoppers 50 and 54 would fit to maintain pen orientation or the grooves 32 and 3~ could extend only partly around each side of casing 30 rather than being fully annular so that the pen would fit into holder~ 18 and 26 in only a single annular orientation~
Similarly, while tbe plotter shown in Fig. 1 is an x-y plotter, the invention could be practiced with any plotter which has a transfer of a pen between a stocker holder and a carriage holder.
For exampl-, tbe invent$on could be used with a pen plotter of the type where aoveaent in one direction is accoaplished by moving a carriage, aoveaent in the other direction i~ effected by moving the paper or other aediu~ with roller- or similar devices and the stocker i- a carou~el which aay be rotated to bring a desird pen , into pro~iaity with the carriage holder. Fin~ily, whlle the ~: ~
, ~ -7-, , ... . . . .
' : ~ ' ~ . ' ' - . ' - - , - .
',: ' ', . " - ' - ' , , ,; - - ' ' ' .
~nventlon ~-~ been de~cr~bed with refer-nce to a calligr~phy-~tyl-fountain pen, lt could be utlllzed wlth other pen- th- wcltlng quality of wh~ch i~ annular orientation dependent. m-refore, while ehe invention h~s been descr~bed ~bove with reference to a preferred embodiment thereof, it will be apparent that the foregoing and otber ch~nges in form and detail ~y be m~de therein by one skilled in the art without departing ftom the ~pirit ~nd scope of the invention '. ~
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Claims (7)
1 A pen for use in a plotter, the plotter being of a type having a pen stocker with at least one pen stocker holder, a pen carriage, a pen holder mounted on the carriage, and means for transferring a pen between a selected stocker bolder and the carriage holder, each of the holders including at least one U-shaped element with a stopper projecting from substantially the center of the connecting leg, each of the holders being adapted to have the pen wedged therein between the side arms of the holder and abutting the stopper;
the pen comprising a casing;
a point mounted to project from the bottom of the casing;
said casing having a first annular groove formed therein for each U-shaped element of the stocker holder and a second annular groove formed therein for each U-shaped element of the carriage holder;
a first projection extending in at least one of said first grooves, the annular position of said projection in the groove being such that it fits between the stopper projection and a selected one of the side arms of the stocker U-shaped element in which the first groove fits when the pen is properly annularly oriented in the stocker holder; and a second projection extending in at least one of said second grooves, the annular position of said projection in said second grooves being such that it fits between the stopper projection and a selected one of the side arms of the carriage U-shaped element in which the second groove fits when the pen is properly annularly oriented in the carriage holder;
whereby a desired annular orientation may be maintained for said pen as it is maintained in said holders and as it is transferred between the stocker holder and the carriage holder.
the pen comprising a casing;
a point mounted to project from the bottom of the casing;
said casing having a first annular groove formed therein for each U-shaped element of the stocker holder and a second annular groove formed therein for each U-shaped element of the carriage holder;
a first projection extending in at least one of said first grooves, the annular position of said projection in the groove being such that it fits between the stopper projection and a selected one of the side arms of the stocker U-shaped element in which the first groove fits when the pen is properly annularly oriented in the stocker holder; and a second projection extending in at least one of said second grooves, the annular position of said projection in said second grooves being such that it fits between the stopper projection and a selected one of the side arms of the carriage U-shaped element in which the second groove fits when the pen is properly annularly oriented in the carriage holder;
whereby a desired annular orientation may be maintained for said pen as it is maintained in said holders and as it is transferred between the stocker holder and the carriage holder.
2. A pen as claimed in claim 1 wherein there is a single stocker U-shaped element, and therefore a single first annular groove in said pen casing; and wherein there are two carriage U-shaped elements, and therefore two second annular grooves in said pen casing.
3. A pen as claimed in claim 1 wherein said pen is a fountain pen.
4. A pen for use in a plotter, the plotter being of a type having a pen stocker with at least one pen stocker holder, a pen carriage, a pen holder mounted on the carriage, and means for transferring a pen between the carriage holder and a selected stocker holder;
the pen comprising:
a casing;
a point mounted to project from the bottom of the casing;
said casing including first means adapted to interact with a stocker holder to establish and maintain a desired annular orientation of the pen in the stocker holder, and second means for interacting with the carriage holder to establish and maintain a desired annular orientation of the pen in the carriage holder;
whereby a desired annular orientation may be maintained for said pen as it is transferred between the stocker holder and the carriage holder.
the pen comprising:
a casing;
a point mounted to project from the bottom of the casing;
said casing including first means adapted to interact with a stocker holder to establish and maintain a desired annular orientation of the pen in the stocker holder, and second means for interacting with the carriage holder to establish and maintain a desired annular orientation of the pen in the carriage holder;
whereby a desired annular orientation may be maintained for said pen as it is transferred between the stocker holder and the carriage holder.
5. A pen as claimed in Claim 4 wherein said means for establishing and maintaining orientation are projections selectively positioned on said casing.
6. A pen as claimed in claim 5 wherein each of the holders includes at least one U-shaped element with a stopper projecting from substantially the center of the connecting leg, each of the holders being adapted to have the pen wedged therein between the side arms of the holder and abutting the stopper; and wherein each of said projections on the pen casing is adapted to fit between the stopper and a selected side arm of the corresponding U-shaped element when the pen is properly annularly oriented in the corresponding holder.
7. A pen as claimed in claim 4 wherein said pen is a fountain pen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 552581 CA1279049C (en) | 1987-11-24 | 1987-11-24 | Plotter pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 552581 CA1279049C (en) | 1987-11-24 | 1987-11-24 | Plotter pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1279049C true CA1279049C (en) | 1991-01-15 |
Family
ID=4136911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 552581 Expired CA1279049C (en) | 1987-11-24 | 1987-11-24 | Plotter pen |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1279049C (en) |
-
1987
- 1987-11-24 CA CA 552581 patent/CA1279049C/en not_active Expired
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